#tt {
 padding:6px;
 position:absolute;
 display:block;
 background:black;
 color: white;

 text-align: center;
 }
 
#tt hr {
 border:0;
 border-top:solid black 5px;
 height:1px;
 margin:3px 0 2px;
 text-align: center;
 }